#demo_p
{
    overflow: hidden;
    width: 960px;
    margin-left: 20px;
}
#demo_p img
{
    border: 2px solid #7bc5ff;
}
#indemo_p
{
    float: left;
    width: 800%;
}
#demo1_p
{
    float: left;
}
#demo2_p
{
    float: left;
}
#demo_pro
{
    width: 150px;
    float: left;
    padding-right: 20px;
    padding-left: 20px;
}
#demo_pro span
{
    text-align: center;
    float: left;
    width: 160px;
}